Time-controlled lighting device



. 1,493,081 G. c. LARSON v TIME CONTROLLED LIGHTING DEVICE May 6 1924.

Filed May 17. 1923 Georg? CL ars n Patented May 6, 1924.

UNITED STATES PATENT orrlcs.

TIME-CONTROLLED LIGHTING DEVICE.

Applicationflled Hay 1'7, 1923. SeriaLRo. 639,565.

To all whom it may concern,

Be it known that I, GEORGE C. LARSON, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Time-Controlled Lighting Devices, of which the following is a specification.

This invention relates to time controlled 1 lighting devices and the main object is to provide a mechanism, in combination with an alarm clock and an electric light, whereby, when the alarm is rung a circuit will be closed through the light and the alarm. will be stopped. Thus, when a person sets the clock before retiring at night, the alarm will sound at the proper time in the morning, the electric light will be energized, and the alarm willbe shut 0E, all being done automatically and without the aid of the oper-' ator.

In the accompanying drawings: Fig. '1 is a front elevation of the device.

\ Fig. 2 is a rear elevation of the device.

Fig. 3 is a fractional view of one end portion of the base.

Fig. 4 is a perspective detail View of the clamp 19.

Referring to the drawing by reference characters, 5 designates a base member, having downwardly pressed integral feet 6, at its corners. Upon one end of the base 5 is secured an electric switch socket 7, operated by a chain 8, and having a light bulb 9 upon which may be placed an ornamental shade 10. A light cord 11 is connected at one end to the socket 7 and has a plug 12, at

its other end, for connecting the lamp 9 in an electric circuit.

Upon the opposite end of the base 5 is placed an alarm clock 13, which is removably secured thereto by a spring clamp 14. Theby small bolts 16, engaging in slots 17. The

bolts 16 are also used to secure the 1 1 to the base.

Upon the alarm winding stem 18, of the clock 13, is secured a clamp 19, fastened by a small bolt 20, and having an arm or extension 21, which is notched at its outer end, as at 22, to receive and hold the chain 8.

With the plug 12 connected'to a lighting system, the device is set by engaging the chain 8 in the notch 22, and winding and setting the clock, in the usual manner. Now, when the alarm is sounded the alarm winding stem will turn in the direction indicated by the arrow A. This will pull the chain 8 until the light is energized. When the chain reaches its limit it will prevent the stem 18 from turning any further, and will thus stop or shut off the alarm, until it is again re-set.

It is understood that suitable modifications may be made in the device, as herein shown and described, provided, however, that such modifications come within the spirit and scope of the appended claims.

Having now therefore fully shown and described my invention, what I claim to be new and desire to protect by Letters Patent 1s:

1. The combination with an alarm clock having an alarm winding stem, of a clamp detachably secured to the stem and having a notched extension adapted to detachably receive the switch controlling chain of an electric light socket.

2. The combination with an alarm clock having an alarm winding stem, of a clamp detachably secured to the stem, said clamp consisting of a substantially U-shaped clip having a bolt adapted to secure it upon the stem, one arm of said clip having a narrow notch adapted to detachably receive and retain the socket chain of an electric light.

In testimony whereof I afiix my signatrue.

GEORGE C. LARSON.

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